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38941178668 = 2272198679483
BaseRepresentation
bin100100010001000100…
…110011101100101100
310201111212200211200121
4210101010303230230
51114222420204133
625520032334324
72545666362100
oct442104635454
9121455624617
1038941178668
1115573309997
1276693a43a4
1338978bba72
141c55b0b900
15102da8702d
hex911133b2c

38941178668 has 18 divisors (see below), whose sum is σ = 79273114116. Its totient is φ = 16689076488.

The previous prime is 38941178659. The next prime is 38941178669. The reversal of 38941178668 is 86687114983.

It is not an unprimeable number, because it can be changed into a prime (38941178669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 99339546 + ... + 99339937.

Almost surely, 238941178668 is an apocalyptic number.

It is an amenable number.

38941178668 is an abundant number, since it is smaller than the sum of its proper divisors (40331935448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38941178668 is a wasteful number, since it uses less digits than its factorization.

38941178668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198679501 (or 198679492 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 61.

The spelling of 38941178668 in words is "thirty-eight billion, nine hundred forty-one million, one hundred seventy-eight thousand, six hundred sixty-eight".

Divisors: 1 2 4 7 14 28 49 98 196 198679483 397358966 794717932 1390756381 2781512762 5563025524 9735294667 19470589334 38941178668